?振簧静电计

... vibrating-reed ==> 振动片,振簧 vibrating-reed electrometer ==> 振簧静电计 vibrating-reed frequency meter ==> 振簧式频率计 ...

[物]?振簧式静电计

... 振幅因素 amplitude factor 振簧式静电计 vibrating-reed electrometer 振簧式频率计 vibrating-reed frequency meter ...